Accession Number : ADA329036

Title :   THz Radiation Source Trough Periodically Modulated Structures.

Descriptive Note : Interim rept. no. 7, Jun-Aug 97,

Corporate Author : TECHNISCHE UNIV VIENNA (AUSTRIA)

Personal Author(s) : Gornik, E. ; Rauch, Ch. ; Strasser, G. ; Unterrainer, K.

PDF Url : ADA329036

Report Date : 14 AUG 1997

Pagination or Media Count : 7

Abstract : In the time period since the last report we have concentrated our activities in in measuring plasmon replicas in low doped bulk GaAs using the technique of hot electron spectroscopy. For this purpose a new four terminal device was fabricated abd tested . The IV curves are very promising and show some pronounced features which have to be analyzed together with theoretical calculations. In addition we have concentrated our efforts on new specially designed structures together with the Boston group to achieve strong population inversion. Design and subsequent growth of a series of nanostructures with appropriate injector-extractor arrangements for two different doping levels was realised.

Descriptors :   *PLASMA INSTABILITIES, SCANNING ELECTRON MICROSCOPES, QUANTUM WELLS, GALLIUM ARSENIDES, SUPERLATTICES, ELECTRON BEAMS, INVERSION, CONDUCTION BANDS, DOPING, REPLICAS, MODULATION, ELECTRON SPECTROSCOPY, PLASMONS, AUSTRIA, PLASMA WAVES, TUNNEL DIODES.

Subject Categories : Plasma Physics and Magnetohydrodynamics
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE